EMI-HS Shielding Heat Shrink Tubing

EMI-HS shielding heat shrink tubing is used as an auxiliary protective sheath for wires or cables. The sheath offers excellent wear resistance, chemical resistance, fluid resistance, and bacteriostatic properties, protecting wires from the effects of EMI, RF, and EMF.

• Outer Layer: The outer layer is made from irradiated cross-linked flame-retardant polyolefin material, which complies with RoHS standards.

• Inner Layer: The inner layer is standard with nickel-plated copper shielding fabric, providing outstanding corrosion protection. The lightweight and flexible shielding fabric will not peel off or degrade over time, and the shielding effectiveness is greater than 60dB (1MHz-100GHz). The components offer long-lasting protection against EMI, RFI, and EMF.

• Custom Length: The tubing is produced in standard lengths, typically 1 meter per piece, and is suitable for a wide range of applications.

• Shrink Ratio: Available in 2:1, 3:1, and 4:1 shrink ratios.

• Diameter Range: The diameter ranges from 4.8mm to 50.8mm, with custom sizes available upon request.

• Operating Temperature Range: The product is suitable for use in environments with temperatures ranging from -55°C to 135°C.

• Technical Data
  Property	Test Method	Requirement
  Longitudinal Change	GJB 7270-2011	-5%~5%
  Restricted Shrinkage(175℃/30min.)	GJB 7270-2011	No cracking
  Water Absorption (23℃/24h)	GJB 7270-2011	≤0.5%
  Tensile Strength	GJB 7270-2011	≥10.4MPa
  Ultimate Elongation	GJB 7270-2011	≥200%
  Heat Shock(250℃/4h)	GJB 7270-2011	No cracking,dripping or flowing
  Heat Aging(175℃/168h)   Tensile Strength Ultimate Elongation	GJB 7270-2011	≥ 70% of the initial value ≥100%
  Dielectric breakdown	GJB 7270-2011	≥7.9kV/mm
  Dielectric withstand (AC2500V·1min.)	GJB 7270-2011	No breakdown
  Volume resistivity	GJB 7270-2011	≥1.0×1012Ω·cm
  EMI performance	GBT 32511-2016/ GJB 8820-2015	1MHz-10GHz,  ≥65dB
  Resistance of Inner Layer	/	≤1Ω/10cm
  Fluid Resistance(23℃/24h)   Tensile Strength Ultimate Elongation	GJB 7270-2011	≥ 70% of the initial value ≥100%
  Flammability	GJB 7270-2011	≤60s buring duration
  Low temperature Flexibility (-55℃/4h)	GJB 7270-2011	No cracking
  Thermal Cycling(-55℃/135℃)	GJB 7270-2011	≥70% of the initial value Ultimate Elongation≥100%
  Salt Spray Test	GJB 150.11	≥70% of the initial value Ultimate Elongation≥100%
  Damp-Heat Test	GJB 150.9	≥70% of the initial value Ultimate Elongation≥100%
  Fungus Resistance	GJB 150.10	Not worse than rating 1
  Vacuum Outgassing	GJB1217A-2009，Method 4001	TML≤1% CVCM≤0.1%

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• Dimension
  Part No.	As supplied (mm)	After Recovered(mm)		Standard Length
  	Inner Diameter D(Min.)	Inner Diameter d (Max.)	Wall Thickness t	m/pc
  Shrink Ratio 2:1
  4.8/2.4	4.8	2.4	0.51±0.10	1
  6.4/3.2	6.4	3.2	0.64±0.12	1
  7.9/4.0	7.9	4.0	0.64±0.12	1
  9.5/4.8	9.5	4.8	0.64±0.12	1
  12.7/6.4	12.7	6.4	0.64±0.12	1
  15.9/7.9	15.9	7.9	0.64±0.12	1
  19.1/9.5	19.1	9.5	0.76±0.12	1
  22.2/11.1	22.2	11.1	0.89±0.15	1
  25.4/12.7	25.4	12.7	0.89±0.15	1
  31.8/15.9	31.8	15.9	1.02±0.20	1
  38.1/19.1	38.1	19.1	1.02±0.20	1
  Shrink Ratio 3:1
  6/2	6.0	2.0	0.70±0.12	1
  9/3	9.0	3.0	0.80±0.15	1
  12/4	12.0	4.0	0.85±0.15	1
  18/6	18.0	6.0	1.00±0.15	1
  24/8	24.0	8.0	1.20±0.20	1
  39/13	39.0	13.0	1.50±0.25	1
  Shrink Ratio 4:1
  19.1/4.6	19.1	4.6	2.00±0.30	1
  25.4/7.0	25.4	7.0	2.00±0.30	1
  38.1/9.5	38.1	9.5	2.30±0.40	1
  50.8/14	50.8	14.0	2.40±0.40	1